$ErrorActionPreference = 'Stop'

function ConvertFrom-Utf8Base64 {
  param([string]$Value)
  return [Text.Encoding]::UTF8.GetString([Convert]::FromBase64String($Value))
}

function Assert-Contains {
  param([string]$Content, [string]$Expected, [string]$Message)
  if ($Content -notmatch [regex]::Escape($Expected)) { throw $Message }
}

function Assert-NotContains {
  param([string]$Content, [string]$Unexpected, [string]$Message)
  if ($Content -match [regex]::Escape($Unexpected)) { throw $Message }
}

$root = Split-Path -Parent $PSScriptRoot
$pagePath = Join-Path $root 'pages/auth/a05-reset-password.vue'
$pages = Get-Content -LiteralPath (Join-Path $root 'pages.json') -Raw -Encoding utf8 | ConvertFrom-Json
$catalog = Get-Content -LiteralPath (Join-Path $root 'data/page-catalog.js') -Raw -Encoding utf8
$page = Get-Content -LiteralPath $pagePath -Raw -Encoding utf8
$resetCopy = ConvertFrom-Utf8Base64 '6YeN6K6+5a+G56CB'
$confirmPasswordCopy = ConvertFrom-Utf8Base64 '56Gu6K6k5paw5a+G56CB'
$getCodeCopy = ConvertFrom-Utf8Base64 '6I635Y+W6aqM6K+B56CB'
$loginCopy = ConvertFrom-Utf8Base64 '6L+U5Zue55m75b2V'
$sliderPendingCopy = ConvertFrom-Utf8Base64 '5ruR5Yqo6aqM6K+B5b6F5o6l5Y+j5o6l5YWl'

if (-not ($pages.pages.path -contains 'pages/auth/a05-reset-password')) { throw 'A-05 route must remain declared in pages.json' }
Assert-NotContains -Content $page -Unexpected 'ModulePage' -Message 'A-05 must not remain a ModulePage shell'
foreach ($required in @(
  '<AuthPageShell',
  'import AuthPageShell from "@/components/AuthPageShell.vue";',
  'a01-vnext-divider-v1.png',
  'a01-scroll-primary-v3.png',
  'adaptive.adaptive-feedback-toast',
  'a01-scroll-dialog-v3.png',
  'chevron-right.png',
  'v-model.trim="phone"',
  'v-model.trim="verificationCode"',
  'v-model="password"',
  'v-model="confirmPassword"',
  'const prepareGetCode = () =>',
  'const submitReset = () =>',
  'const fieldErrors = ref({',
  'const successVisible = ref(false)',
  'class="feedback-toast"',
  'class="success-layer"',
  'const prepareLogin = () => uni.redirectTo({ url: "/pages/auth/a01-entry" });',
  'if (!/^1\d{10}$/.test(phone.value))',
  'if (!/^\d{6}$/.test(verificationCode.value))',
  'validatePassword(password.value)',
  'PASSWORD_POLICY_MESSAGE',
  'if (password.value !== confirmPassword.value)',
  'adaptive.adaptive-feedback-toast;',
  'top: calc(var(--status-bar-height, 0px) + 24rpx);',
  'max-height: calc(var(--app-viewport-height) - 40px);'
)) {
  Assert-Contains -Content $page -Expected $required -Message "Missing A-05 reset-password contract: $required"
}
Assert-Contains -Content $page -Expected $resetCopy -Message 'A-05 must visibly identify the password-reset task'
Assert-Contains -Content $page -Expected $confirmPasswordCopy -Message 'A-05 must require password confirmation'
Assert-Contains -Content $page -Expected $getCodeCopy -Message 'A-05 must expose the verification-code action'
Assert-Contains -Content $page -Expected $loginCopy -Message 'A-05 must provide the A01 return path'
Assert-Contains -Content $page -Expected $sliderPendingCopy -Message 'A-05 must defer the real slider to the interface stage'
Assert-NotContains -Content $catalog -Unexpected 'a05:' -Message 'A-05 must not remain in the temporary page catalog'
foreach ($forbidden in @('class="page-canvas"', 'class="page-backdrop"', 'mode="scaleToFill"', '1665rpx', 'a01-red-hall-ink-backdrop-v1.png')) {
  Assert-NotContains -Content $page -Unexpected $forbidden -Message "A05 retains rejected page coordinates: $forbidden"
}
foreach ($obsoleteVisual in @(
  'a01-primary-button.png',
  'a01-secondary-button.png',
  'a02-login-panel.png',
  'auth-divider-knot.png',
  'feedback-toast__skin',
  'codeRequested',
  'verificationVisible',
  'verification-layer',
  'closeVerification',
  'confirmVerification',
  'font-family:'
)) {
  Assert-NotContains -Content $page -Unexpected $obsoleteVisual -Message "A-05 must not retain obsolete visual or placeholder state: $obsoleteVisual"
}

$primarySkinCount = ([regex]::Matches($page, 'a01-scroll-primary-v3\.png')).Count
if ($primarySkinCount -ne 2) { throw "A-05 must use the approved primary skin exactly twice, found $primarySkinCount" }
foreach ($nativeUi in @('uni.showToast', 'uni.showModal', 'uni.showLoading', 'uni.showActionSheet')) {
  Assert-NotContains -Content $page -Unexpected $nativeUi -Message "A-05 must not use native UniApp feedback: $nativeUi"
}
Assert-NotContains -Content $page -Unexpected '/pages/auth/a02-login' -Message 'A-05 must not return to the retired A02 route.'

foreach ($forbidden in @(
  '(?s)\.reset-panel\s*\{[^}]*\bborder\s*:',
  '(?s)\.reset-panel\s*\{[^}]*\bbackground\s*:',
  '(?s)\.reset-submit\s*\{[^}]*\bborder\s*:',
  '(?s)\.reset-submit\s*\{[^}]*\bbackground\s*:'
)) {
  if ($page -match $forbidden) { throw "A-05 retains forbidden CSS visual construction: $forbidden" }
}

$contentRule = [regex]::Match($page, '(?ms)^\.reset-content\s*\{(?<Body>.*?)^\}')
if (-not $contentRule.Success) { throw 'A05 reset content rule is missing.' }
foreach ($required in @('display: flex;', 'flex: 1;', 'flex-direction: column;', 'max-width: 480px;', 'margin: 0 auto;')) {
  Assert-Contains -Content $contentRule.Groups['Body'].Value -Expected $required -Message "A05 reset content must use document flow: $required"
}

$headingRule = [regex]::Match($page, '(?ms)^\.page-heading\s*\{(?<Body>.*?)^\}')
if (-not $headingRule.Success) { throw 'A05 page heading rule is missing.' }
Assert-Contains -Content $headingRule.Groups['Body'].Value -Expected 'grid-template-columns: minmax(0, 1fr);' -Message 'A05 heading must center against the full content width.'
foreach ($selector in @('page-title', 'page-subtitle', 'reset-divider')) {
  $rule = [regex]::Match($page, "(?ms)^\.$selector\s*\{(?<Body>.*?)^\}")
  if (-not $rule.Success) { throw "A05 heading child rule is missing: $selector" }
  Assert-Contains -Content $rule.Groups['Body'].Value -Expected 'grid-column: 1;' -Message "A05 heading child must remain in the full-width grid column: $selector"
}

Write-Output 'A05-RESET-PASSWORD-CONTRACT PASS'